Question

me ajudem por favor é pra hj​

Answer 1

____________________

1)

____________________

6x² - 3x - 1 = 0 / a = 6,b = -3,c = -1

____________________

-3x² + 4x = 0 / a = -3,b = 4,c = 0

____________________

-x² = 0 / a = -1,b = 0,c = 0

____________________

-4x² - 5 = 0 / a = -4,b = 0,c = -5

____________________

x² + 7x + 3 = 0 / a = 1,b = 7,c = 3

____________________

x² - 1/2 = 0 / a = 1,b = 0,c = -1/2

____________________

2)

A) Falsa

B) Verdadeira

C) Verdadeira

D) Falss

E) Verdadeira

____________________

3)

____________________

A) x² - 49 = 0

x² = 49

x = ±√49

x = 7;x = -7

____________________

B) x² - 64 = 0

x² = 64

x = ±√64

x = 8;x = -8

____________________

C) 2x² - 50 = 0

x² - 25 = 0

x² = 25

x = ±√25

x = 5;x = -5

____________________

D) x² - 4x = 0

x(x - 4) = 0

x = 0;x = 4

____________________

E) x² + 10x = 0

x(x + 10) = 0

x = 0;x = -10

____________________

F) 3x² - 6x = 0

x² - 2x = 0

x(x - 2) = 0

x = 0;x = 2

____________________

G) 5x² = 0

x² = 0

x = 0

____________________

Att: MarcosPCV